CAM-1GFP expression appears at the 200-cell stage in most cells of the embryo. Migrating ALM, BDU, CAN, HSN and ccM cells, which migrate embryonically and require
cam-1 function for their migration, are likely to express CAM-1GFP, as most cells of the embryo express the transgene while these cells migrate. During the first larval stage, V cells often express CAM-1GFP at the time that they divide, and the Q-neuroblast descendents, which also require
cam-1 function for their migration, express CAM-1GFP. During larval development, CAM-1GFP is highly expressed in the nervous system, as well as in intestinal, hypodermal and body-wall muscle cells and in parts of the pharynx.